Stationary bicycle



FIG. 1 is a top perspective view of a stationary bicycle in accordance with the present design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a right side view of the stationary bicycle shown in a first alternative position; and,

FIG. 9 is a right side view of the stationary bicycle shown in a second alternative position. 

CLAIM The ornamental design for a stationary bicycle, as shown and described. 